21457716

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{467}}^1\times {\mathrm{547}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 57447936

約数和(自身を除く): 35990220

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 467, 547, 934, 1094, 1401, 1641, 1868, 2188, 2802, 3269, 3282, 3829, 5604, 6538, 6564, 7658, 9807, 11487, 13076, 15316, 19614, 22974, 39228, 45948, 255449, 510898, 766347, 1021796, 1532694, 1788143, 3065388, 3576286, 5364429, 7152572, 10728858, 21457716]

約数ペア:

[(1, 21457716), (2, 10728858), (3, 7152572), (4, 5364429), (6, 3576286), (7, 3065388), (12, 1788143), (14, 1532694), (21, 1021796), (28, 766347), (42, 510898), (84, 255449), (467, 45948), (547, 39228), (934, 22974), (1094, 19614), (1401, 15316), (1641, 13076), (1868, 11487), (2188, 9807), (2802, 7658), (3269, 6564), (3282, 6538), (3829, 5604)]